Construction and other equipment - 1968 HD 4 shuttle clutch worn out?

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1968 HD 4 shuttle clutch worn out?

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=30425
Printed Date: 13 May 2024 at 1:23pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 1968 HD 4 shuttle clutch worn out?

Posted By: Thulsa
Subject: 1968 HD 4 shuttle clutch worn out?
Date Posted: 08 May 2011 at 7:02pm

Hello all. New guy here.

I've got a 1968 HD 4 with a backhoe attachment and bucket loader. It's been good to me and I used it quite a bit last year with almost no problems.

The last few times I used it, it began to feel like the clutch was beginning to slip. Sometimes it would take several seconds to shift, sometimes it would shift but slip under load, sometimes if I rev'd up the engine it would work a little better but when I finally parked it last fall, I barely got it into the barn. It's definitely something that happened over time, as opposed to all at once.

It slips in all gears (3 speed), and both forward and reverse. I started it up the other day and I got it to move 30 foot or so, but it definitely needs to be fixed before I can use it again.

I have a manual and I plan to check the pressure/s, although the manual isn't exactly written for a layman.

Is there anything else that it could be besides a worn out clutch? How do I check it? Any ideas or advice would be greatly appreciated.

Replies:

Posted By: Coke-in-MN
Date Posted: 08 May 2011 at 11:56pm

It is a clutch pack and a torque converter , so slippage could be from wear in the fwd/rev clutch plates or even from low converter pressure.

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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."

Posted By: darrel in ND
Date Posted: 11 May 2011 at 8:26am

I don't want to insult your intelligence, but nor do I want to overlook the obvious; Is the oil level up to snuff? Darrel

Posted By: Thulsa
Date Posted: 11 May 2011 at 4:55pm

The fluids look good to me. The tranny fluid is at the low end of the crosshatches on the dipstick though. I'll make sure I put some in before I start tearing things apart.

Posted By: Coke-in-MN
Date Posted: 11 May 2011 at 6:30pm

Check all your pressures , change filter, and be sure it is full.

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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."